Tidying up itunes library

Just got the latest 64gb Touch, having used several other music devices over the years. Love it, but, when my entire music library was transferred over to iTunes it seems to have gotten mixed. For instance, when it was on my hard drive, all the albums of one artist we all of the same font, info, etc etc, but now they appear on my device mixed up. Some have the artist name twice, some lower case, some upper. Is there any system out there for keeping it all neat and tidy????